CN1692323A - A method for providing of content data to a client - Google Patents

A method for providing of content data to a client Download PDF

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Publication number
CN1692323A
CN1692323A CN 200380100604 CN200380100604A CN1692323A CN 1692323 A CN1692323 A CN 1692323A CN 200380100604 CN200380100604 CN 200380100604 CN 200380100604 A CN200380100604 A CN 200380100604A CN 1692323 A CN1692323 A CN 1692323A
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China
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client
license
content data
data
content
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CN 200380100604
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Chinese (zh)
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乌维·汉斯曼
托马斯·斯托伯尔
詹姆斯·詹宁斯
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国际商业机器公司
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Publication of CN1692323A publication Critical patent/CN1692323A/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00Network architectures or network communication protocols for network security
    • H04L63/04Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/10Protecting distributed programs or content, e.g. vending or licensing of copyrighted material
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06QDATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00Payment architectures, schemes or protocols
    • G06Q20/08Payment architectures
    • G06Q20/12Payment architectures specially adapted for electronic shopping systems
    • G06Q20/123Shopping for digital content
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06QDATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00Payment architectures, schemes or protocols
    • G06Q20/08Payment architectures
    • G06Q20/12Payment architectures specially adapted for electronic shopping systems
    • G06Q20/123Shopping for digital content
    • G06Q20/1235Shopping for digital content with control of digital rights management [DRM]
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2221/00Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/07Indexing scheme relating to G06F21/10, protecting distributed programs or content
    • G06F2221/0779Transfer
    • G06F2221/0793Synchronisation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2463/00Additional details relating to network architectures or network communication protocols for network security covered by H04L63/00
    • H04L2463/101Additional details relating to network architectures or network communication protocols for network security covered by H04L63/00 applying security measures for digital rights management
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00Network architectures or network communication protocols for network security
    • H04L63/10Network architectures or network communication protocols for network security for controlling access to network resources

Abstract

本发明涉及一种用于基于同步技术在客户机上提供对内容数据的通用数字权利管理系统的方法,所述方法包括步骤:从客户机接收内容数据的选择;生成具有定义的DTD格式的XML文件,XML文件包括许可证信息和内容数据的定位符;将XML文件发送到客户机;保持客户机上生成的任何许可证相关数据对服务器的同步。 The present invention relates to a method for providing general digital rights management system for content data on the client-based synchronization, the method comprising the steps of: selecting from the client receiving content data; generating a DTD XML file format defined , XML file including license information and content locator data; send the XML files to the client; holding any license-related data generated on the client synchronized to the server.

Description

向客户机提供内容数据的方法 Providing content data to the client method

技术领域 FIELD

本发明涉及向客户机提供内容数据的领域,特别是不为数字许可证权利管理所限制的内容数据提供。 The present invention relates to the field of providing content data to a client, in particular not the license rights management data of the digital content is provided as a limit.

背景技术 Background technique

媒体内容的数字表示与计算和互联网技术相结合为出版发行提供了强有力方式。 Digital media content represents the computing and Internet technologies combined provide a powerful way for publishing. 根据此相对较新的出版模式,互联网技术允许通过网络如Internet将数字化媒体内容输送到终端用户的客户机计算机上。 According to this publication a relatively new mode, the Internet, such as Internet technology allows the delivery of digital media content to an end user on a client computer over a network. 通信协议定义了如何通过网络交换数字化媒体内容。 Communications protocol defines how to exchange digital media content over a network. 媒体播放器运行在终端用户客户机计算机上,以允许用户重现媒体内容。 A media player running on the end-user client computer, to allow the user to reproduce the media content.

数字权利管理是数字媒体内容数据在线通信的中心问题。 Digital rights management is a central issue of digital media content data online communications. 数字媒体内容数据可为视频和音频数据,图像,文档,软件以及其他形式的数字内容。 Digital media content data may be video and audio data, images, documents, software and other forms of digital content.

数字内容的通常特性为,出版商(或零售商)为客户提供或销售内容,但继续限制使用内容的权利,即便该内容在客户的单独物理控制之下。 Is generally characteristic of the digital content, publishers (or retailer) to provide customers or selling content, but continue to restrict the right to use the content, even though the content under the control of separate physical customer. 例如,出版商通常会持有作品的版权,从而在未经许可的条件下,客户不能复制或出版该作品。 For example, publishers often hold copyright works, so that in conditions without permission, the customer can not copy or publish the work.

出版商也将会根据是否允许客户机制作持久拷贝,或是否在将其输送时仅允许在现观看内容,来调整定价。 Publishers will be based on whether or not to allow the client to produce a durable copy, or whether at the time of delivery only allowed to view the content in its current, to adjust pricing. 这些情形展示出特殊设置。 These circumstances demonstrate special settings. 拥有数字内容数据的用户通常不具有对其使用的全部权利;相反,提供者保留至少某些权利。 Users with digital content data is typically not have full rights to their use; rather, by at least some rights reserved.

现有技术已知有多种数字权利管理的系统和方法,它们用于强制客户机对内容数据的使用率在用户从出版商所获得的许可范围内。 There are many prior art digital rights management systems and methods are known which are used to force the client usage of the content data within the allowable range of the user obtained from the publisher.

美国专利No.6,330,670给出了一种数字权利管理操作系统,其中,当数据载入到存储器中,或者当页式文件作为对存储器进行访问的信任应用的执行结果时,对权利受管数据如下载内容进行保护,以避免被不信任的程序访问。 U.S. Patent No.6,330,670 shows a digital rights management operating system, wherein, when the data is loaded into memory, the page or when the file type as an execution result of a trusted application access to the memory, and such rights managed data Download content protection to prevent access to the program is not trusted. 为保护驻留在存储器中的权利受管数据,当信任的应用正在执行时或加载不信任的程序之前从存储器删除数据时,数字权利管理操作系统拒绝将不信任的程序载入到存储器中。 To protect the rights resident in memory managed data, when a trusted application before loading a program is being executed or when the untrusted delete data from the memory, the digital rights management operating system rejects untrusted program loaded into memory. 从而,能够阻止对权力受管数据的未授权拷贝。 This makes it possible to prevent unauthorized copying of power managed data subject.

美国专利申请2002/0013772A1和美国专利申请2002/0108049A1给出了另一种数字权利管理系统。 U.S. Patent Application 2002 / 0013772A1 shows another digital rights management systems and U.S. Patent Application 2002 / 0108049A1.

WindowsMedia Right Manager是端对端的数字权利管理(DRM)系统,它在市场上可从微软公司获得。 WindowsMedia Right Manager is end to end digital rights management (DRM) system, which is available from Microsoft in the market. 该系统为内容供应商和零售商提供了安全输送数字媒体文件的灵活平台。 The system provides a secure and flexible platform for the delivery of digital media files for content providers and retailers. 它允许内容供应省可通过Internet以保护,加密的文件格式输送歌曲,影视以及其他数字媒体内容,它通过将数字媒体文件进行封装,从而有助于保护数字媒体(如歌曲以及影视)。 It allows content providers to protect the province through the Internet, encrypted file format delivery of songs, movies and other digital media content, which is encapsulated by the digital media files, thereby helping to protect digital media (such as songs and video).

封装的媒体文件包含有使用密钥加密和上锁的媒体文件版本。 Media package file contains encrypted with a key and lock version of the media file. 该封装的文件还含有来自内容供应商的附加信息。 The package also contains additional information file from the content provider. 最终形成仅能为获得许可证的人播放的封装媒体文件。 The final package form for the media file only person licensed to play.

数字权利管理的其中一个问题是,不同的出版商和内容供应省使用不同的数字权利管理方法。 One of the problems of digital rights management is that different publishers and content providers provinces use different digital rights management. 因此,客户机设备需支持多种数字权利管理方法,从而能够使用不同种数字权利管理方法使用户获得和重现来自出版商的内容数据。 Thus, the client devices need to support a variety of digital rights management method, it is possible to use different types of digital rights management method enables the user to obtain and reproduce content data from the publisher.

关于现有技术的数字权利管理系统的另一问题在于,当客户机设备离线时不能获得许可证的续订。 Another problem about digital rights management system of the prior art is that the device is offline when the client can not get a license renewal. 例如,用户购买了允许他或她以固定次数播放内容数据的许可证。 For example, a user purchased allowing him or her to play the content data to a fixed number of licenses. 当该用户旅行时,没有网络连接允许他或她可用完获得的许可证,从而不可能再进行播放。 When the user is traveling, there is no network connection allows his or her license is available to get finished, so can no longer be played. 在此情形中,为续订许可证,用户需要等到他或她能够将客户机设备重新连接到网络。 In this case, in order to renew the license, users need to wait until he or she is able to reconnect to the network client device.

因此本发明目的在于提供一种向客户机提供内容数据的改进方法以及相应的计算机程序和计算机系统。 Therefore object of the present invention to provide an improved method for providing content data and a corresponding computer program and computer system to the client.

发明内容 SUMMARY

本发明提供了一种用于向客户机提供内容数据的方法,所述方法能够以通用方式使用多个数字权利管理系统。 The present invention provides a method for providing content data to a client, the method can be used in a general manner a plurality of digital rights management systems. 这是通过使用基于XML的文档来实现,基于XML的文档根据文档类型定义(DTD)交换数据,其中文档类型定义定义了分别自出版商所用具体数字权利管理系统互换数字权利管理数据的格式。 This is accomplished through the use of XML-based document, the data exchange XML-based document according to the document type definition (the DTD), which defines the document type definition from each publisher particular format used interchangeably digital rights management system digital rights management data.

当用户购买了许可证时,将相应的数字权利管理数据,即许可证信息,以具有定义的DTD格式的扩展标记语言(XML)文件的形式提供给用户的客户机设备。 When a user buys a license, the corresponding digital rights management data, i.e., license information, having an extensible markup language format defined DTD form (XML) file to a user of the client device. 客户机设备解析XML文件,以提取许可证信息,并在本地存储许可证信息。 The client device parses the XML file to extract license information, and license information is stored locally. 此外,客户机设备使用在XML文件中包含的定位符下载内容数据。 In addition, the client device using the locator contained in the XML file to download content data. 根据内容的大小,还可将其直接包含在文档中。 The size of the content, which may also be directly included in the document. 然后,可使用在客户机设备上的重现应用,如Window媒体播放器,重现下载的内容数据。 Can then be used to reproduce the application on the client device, such as Window Media Player, reproduce downloaded content data.

根据本发明的优选实施例,重现应用使用所述设备的公共许可证客户机检查许可证状态信息。 According to a preferred embodiment of the present invention, the reproducing apparatus using a common application permits the client checks the license status information. 如果实际许可证状态包括对内容数据的所需重现,则重现能够开始进行,并相应调整许可证状态。 If desired the actual license status includes the content data reproduction, the reproducing can be started, and adjust the license status. 当许可证到期时,重现失效。 When the license expires, to reproduce the failure.

根据本发明的又一优选实施例,当许可证到期时重现失效,不过要记录许可证到期后内容数据的使用情况,并将其存储在本地许可证数据库中。 According to a further preferred embodiment of the present invention, when reproducing the license expiry, but to record usage of the content data when the license expires, the local license database and stores it in. 当客户机设备中心连接到网络时,启动进程从而为所需的许可证权利追加付费。 When a client device connected to the network center, to start the process in order to pay for additional license rights necessary. 从而,使用户能够在原始许可证到期时仍能播放内容数据,且在旅行期间不对网络连接进行访问。 Thus, the user can still play content data when the original license expires, and the right-Fi access during the trip. 特别是,这允许基于预定的商业模式。 In particular, this allows based on predetermined business model.

在所附从属权利要求中还给出了本发明的其他优选实施例。 In the appended dependent claims present further shows another preferred embodiment of the invention.

附图说明 BRIEF DESCRIPTION

下面,将参照附图,更详细地描述本发明的优选实施例,其中:图1表示本发明的计算机系统实施例的框图;图2表示用于将许可证信息传递到客户机设备的具有定义的DTD格式的XML文件的示例; FIG 2 shows a definition of having to transfer license information to the client device; FIG. 1 shows a block diagram of a computer system according to the present embodiment of the invention: Hereinafter, the present invention will preferably be described in more detail with reference to the accompanying embodiments, wherein Sample XML DTD file formats;

图3表示根据本发明的客户机设备优选实施例的框图;图4表示本发明的方法实施例的流程图。 Figure 3 shows a block diagram of an embodiment of a client device according to the invention preferably; FIG. 4 shows a flowchart of a method embodiment of the present invention.

具体实施方式 Detailed ways

图1表示计算机系统100的框图。 1 shows a block diagram of a computer system 100. 计算机系统100具有服务器计算机102,服务器计算机102实现有网络门户104。 Computer system 100 includes a server computer 102, server computer 102 has implemented the web portal 104. 网络门户104为数字内容数据的选择以及该数字内容数据使用许可证权利的购买提供平台。 Selecting a network gateway 104 to the digital content of the digital content data and rights data license purchase offer internet.

服务器计算机102具有内容选择数据库106,内容选择数据库106与网络门户104相连,以便允许用户能够执行用于用户鉴别的数据库查询以及选择所需的内容数据如音乐,影视,图像,软件或其他数字媒体内容数据。 The server computer 102 has a content database 106 to select, the content selection database 106 connected to the network portal 104, so as to allow a user to perform database queries for user authentication, and select the desired content data such as music, video, images, software or other digital media content data.

可将客户机计算机108通过计算机网络如Internet或无线网络,连接到服务器计算机102。 The client computer 108 may be via a computer network such as the Internet or wireless network connection to the server computer 102. 通过客户机计算机108,用户能够从网络门户104选择内容数据,购买许可证或为其支付费用,并按照DTD格式的XML文件的形式接收数字权利管理数据,即许可证信息。 108, the user can select by a client computer from the network portal content data 104, buy a license or pay for, and receive digital rights management data in the form of XML DTD file formats that license information. 客户机计算机108可为个人计算机,个人数字助理,移动电话或其他能够通过计算机网络连接到服务器计算机102上的固定或便携式设备。 The client computer 108 may be a personal computer, a personal digital assistant, or other mobile phone can be connected to a computer network via a fixed or portable device 102 on the server computer.

服务器计算机102可连接至许可证服务器110。 The server computer 102 may be connected to the license server 110. 许可证服务器110具有在其中存储有数字媒体内容数据的出版商以及其他供应商的许可证条件的许可证数据库112。 The license server 110 having stored therein the permit conditions publishers and other content providers of digital media data database 112 of the license. 服务器计算机102通过对许可证数据库112进行查询以便将具体数字媒体内容数据文件的许可证条件返回到服务器计算机102,从而能够从许可证服务器110请求这样的许可证条件。 Server computer 102 by the license database 112 queries the specific conditions in order to return the license of digital media content data file to the server computer 102, it is possible to permit such conditions from the license server 110 requests.

数字媒体内容数据存储在内容服务器114的内容数据库116中。 In the content database 114 of the content server 116 stores digital media content data. 客户机计算机108能够请求从内容服务器114下载所需的内容数据文件;它需要提供相应的许可证密钥以便允许下载操作。 The client computer 108 can request the content from the download server 114 of the content data file; it needs to provide the appropriate license key to allow the downloading operation.

在此所讨论的优选实施例特别有益于服务器计算机102可使用多种数字权利管理方法且无需客户机计算机108支持严格相同的数字权利管理方法的情形。 In preferred embodiments discussed herein particularly useful server computer 102 may use a variety of digital rights management, and client computer 108 without support case strictly identical digital rights management method. 这种灵活性的原因在于,所定义的DTD格式提供了用于互换数字权利管理数据的通用且公共的方式。 Because of this flexibility, as defined DTD provides a universal format and a common way for data interchange digital rights management. 无论服务器计算机102具体使用什么样的数字权利管理方法,客户机计算机108都能够解析DTD格式的XML文件,以便提取所需的数字权利管理信息,并因此保护内容数据。 Regardless of what particular server computer 102 digital rights management method, the client computer 108 can parse the XML DTD file format, in order to extract the desired digital rights management information, and thus to protect the content data.

至于DTD语法参考的详细内容,参看XML规范(http://www.w3.org/TR/REC-xml),其全部内容在此引作参考。 As detailed with reference to the DTD syntax, see XML specification (http://www.w3.org/TR/REC-xml), the entire contents of which is incorporated herein by reference.

图2表示从服务器计算机102发送到客户机计算机108的采用预定DTD格式的XML文件的示例。 FIG 2 shows an example of a client computer using a predetermined DTD XML format file 108 from server computer 102 to transmit. DTD文件的行200表示“源”,即分发许可证信息的内容供应商,如用于访问在内容服务器114上的内容数据库116的URL(统一资源定位符)。 Line 200 DTD file indicates that the "source", that is to distribute content provider license information, such as a URL (Uniform Resource Locator) to access database content on the content server 114 116. 在此处所述示例中,该URL为“www.sonsforsale.com”。 In the example herein, the URL is "www.sonsforsale.com".

DTD文件的行202给出“目标”的表示,即表示使用许可证信息的本地重现应用。 Line DTD file 202 given "target" indicates, that means using a local license information to reproduce the application. 在此处所述示例中,它是在客户机计算机108上的MP3player/video1重现应用。 In the example described herein, which is on the client computer MP3player 108 / video1 reproducing application.

行204表示嵌入的许可证信息的类型和/或格式。 Line 204 indicates the type of the embedded license information and / or format. 换而言之,行204表示所要使用的数字权利管理方法。 In other words, line 204 represents a digital rights management method to be used. 在此处所述示例中,它是“MSFTMediaRightManager”。 In the example described herein, it is the "MSFTMediaRightManager".

DTD文件的行206表示许可内容数据项的标识(ID)。 Line 206 represents a DTD file identification (ID) of the license of content data items. 通过该密钥,“源”能够明确地识别内容数据。 By this key, the "source" can clearly recognize the contents data. 在此示例中,ID为“10536681”。 In this example, ID is "10536681."

DTD文件的行208表示许可证信息,例如,下载内容数据所需的密钥或在客户机上执行文件所需的密钥,表示许可范围的数据,即允许重现的固定次数或特定期限。 DTD file line 208 indicates that the license information, for example, download content or key data needed to perform a key file on the client, the data indicate the scope of the license, which allows a fixed number or a specific period of reproduction. 此外,在此还可包括状态信息,如使用/未用,有效/过期,等等。 Further, in this state it may also include information such as the use / non-use, effective / expired, and the like.

之后还可跟有另一行208,表示这样具有在随后行206中给出的另一ID的另一内容数据项的许可证信息。 After 208 may also be followed by another line, having a license information refers to another item of content data to another given ID in a subsequent row 206.

图3表示客户机计算机108的更详细框图,客户机计算机108具有用于将客户机计算机108通过计算机网络与服务器计算机102连接的程序模块。 3 shows a more detailed block diagram of client computer 108, client computer 108 has program module 108 for client computers connected over a computer network with the server computer 102. 程序模块300具有用于解析从服务器计算机102(如图1所示)接收的采用DTD格式的XML文件的解析器302。 Program module 300 has a parser for parsing the XML file format using the DTD server computer 102 (FIG. 1) received 302. 此外,程序模块300还具有内容下载模块304,用于请求下载内容数据,以及接收内容数据。 In addition, program modules 300 further includes a content download module 304, a request to download contents data, and receiving content data.

客户机计算机108具有本地许可证数据库308,用于存储通过解析器302从XML文件中提取出的许可证信息。 The client computer 108 having a local license database 308, for storing the extracted from the XML file parser 302 by the license information.

下载的内容数据存储在本地内容数据库310中。 Downloaded content data stored in a local content database 310. 重现应用程序312能够通过公共许可证客户机311访问本地内容数据库300,以通过输出设备314如扬声器或显示器重现内容数据。 Reproducing application 312 to access the local content database 300 via the client 311 public license to reproduce content such as a speaker or a display device 314 through the output data. 此外,客户机计算机108具有用户接口316,通过它,用户能够从本地内容数据库310中选择由重现应用312重现的内容数据。 In addition, the client computer 108 having a user interface 316, through which the user can select the content data reproduced by the reproducing application 312 from a local content database 310.

在操作上,客户机计算机108从服务器计算机102(如图1所示)接收DTD格式的XML文件。 In operation, the client computer 108 receives the XML DTD format file from the server computer 102 (Figure 1). XML文件由程序模块300的解析器302解析。 XML file is parsed by the parser program modules 300 302. 由解析器302从XML文件中提取的许可证信息数据存储在本地许可证数据库308中。 308 extracted from the XML file from the parser 302 the license information data stored in the local license database. 通过内容下载模块304从内容服务器(如图1所示)下载内容数据,或将内容数据包含在同一个XML文档中(依据大小)。 From the content server (FIG. 1) download content data or content data included in the same XML document (based on size) by the content download module 304.

下载的内容数据存储在本地内容数据库310中,以便随后由重现应用312进行重现。 Downloaded content data stored in a local content database 310, for subsequent application 312 is reproduced by reproducing.

用户通过用户接口316能够选择进行重现的具体内容数据文件。 Via the user interface 316 can be selected for specific content data file reproduced. 自用户接口316将相应的请求输入到重现应用312中。 Since the user interface 316 corresponding to the playback request input 312 application. 作为响应,重现应用312请求公共许可证客户机检查所请求内容数据在本地许可证数据库308中的许可证状态。 In response, the application 312 requests public license to reproduce the client checks the license status in the local license database 308 the requested content data. 如果许可证状态足够满足重现,则公共许可证客户机通过从本地内容数据库310对内容数据进行检索从而获得内容数据并由重现应用312重现。 If the license status sufficient for reproduction, the public client to obtain the license of the content data retrieved by a local content database 310 from the content data reproduced by the reproducing application 312. 如果许可证状态不满足重现,则重现失效。 If the license status is not satisfied to reproduce, to reproduce the failure.

假设公共许可证客户机311在本地许可证数据库308中可记录和存储原始许可证到期后的内容数据使用量以便于日后付费,在XML文件中表示的数字权利管理方法允许用户即便在原始许可证用完后继续使用内容数据。 Public License client 311 is assumed to be in the future in charge and the content usage data stored original license expires after a local license database 308, a digital rights management method shown in the XML file allows the user even when the original license continue to use the card after use content data. 如果在本地许可证数据库308中对于所请求的数据指定这样的数字权利管理方法,则应用程序312仍重现内容数据,并将内容数据的使用量存储在本地许可证数据库308中。 If the requested data is specified for such a digital rights management method, the application 312 in the local license database 308 still reproduce the content data, the consumption of the storage 308 and the content data in the local license database. 当客户机计算机108重新连接至网络许可证时,通过同步模块307对本地许可证数据库308中记录的条目执行同步,启动续订模块306来更新许可证并为原始许可证到期后的内容数据使用量付费。 When the client is reconnected to the network computer 108 permits entry module 307 by synchronizing the local license database 308 records synchronization is performed to start the renewal module 306 updates the license and the content license expires after the raw data the amount paid.

从而,许可证续订模块306实现了对以前所购买的许可证进行续订的自动过程。 Thus, the license renewal module 306 implements an automatic process for previously purchased licenses renewal. 同步模块307可基于任何同步技术,如SyncML。 Synchronization module 307 can be based on any synchronization technology, such as SyncML.

应注意,可以安装多种其他重现应用程序。 It should be noted, can be installed to reproduce a variety of other applications. 这些重现应用程序依赖于公共许可证客户机311,以获取和更新许可证状态相关数据。 These applications rely on the public to reproduce the license client 311 to obtain the license status and update the relevant data.

图4表示相应的方法。 4 shows a corresponding method. 在步骤400中,用户在网络门户上选择内容数据。 In step 400, the user selects the content data on the web portal. 在步骤402中,网络门户从许可证服务器计算机请求对于所选内容数据的许可证条件,并对客户机提供相应的许可证选择。 In step 402, the web portal requests a license condition for the selected content data from the license server computer, the client and provide the corresponding license selection. 在步骤404中,客户机选出特定的许可证类型,并在步骤406中通过输入付费标识如信用卡号提供付费。 In step 404, the client selected a specific license type, and enter the pay-by in step 406 to identify credit card numbers offer paid.

在步骤408中,网络门户生成包含有许可证信息的按预定DTD格式的XML文件。 In step 408, the web portal generates an XML file with the license information in a predefined format DTD.

将XML文件传送到客户机。 XML file to transfer to the client.

在步骤410中,客户机解析XML文件,并在步骤412中将提取的许可证信息存储在其本地许可证数据库中。 In step 410, the client parses the XML file, and in step 412 extracts the license information stored in its local license database. 在步骤414中,客户机利用在XML文件中包含的以及其本地内容数据库中存储的许可证信息下载内容数据。 In step 414, a client license information and download the data contained in the XML file is stored in the database of its local content. 在步骤416中,用户选择下载的特定内容数据以便进行重现。 In step 416, the user selects a particular content data downloaded for reproduction. 作为响应,在步骤418中,相应的重现应用程序检查所要重现的内容数据的许可证状态。 In response, in step 418, the license status of the corresponding application checks reproducing content data to be reproduced.

在步骤420中,根据许可证状态,启动重现。 In step 420, based on the license status, start to reproduce. 在步骤422中,通过调用公共许可证客户机API,重现应用程序对存储在本地许可证数据库中的许可证信息进行更新。 In step 422, by calling Public License Client API, an application for a license to reproduce the information stored in the local license database to be updated. 例如,如果许可证包含有内容数据重现的固定次数,从而通过公共许可证客户机将重现的剩余次数递减。 For example, if the license contains a fixed number of reproduced content data, so that by decreasing the number of remaining Public License client reproduced. 当许可证用完时,在步骤424中由客户机请求许可证的续订。 When the license is used up, in step 424 by the client to renew the license request.

相应的请求发送到网络门户,并由客户机接收附加的XML文件,以便续订许可证。 It sends a corresponding request to the network gateway by the client receives additional XML file, in order to renew the license. 此许可证的续订可响应用户的相应请求而执行,或当原始许可证到期时根据用户选择的设置将其自动触发。 This renewal of the license in response to a corresponding request may be performed in a user, or according to user selection when it is triggered automatically setting the original license expires.

参考标号列表100:计算机系统102:服务器计算机104:门户106:内容选择数据库108:客户机110:服务器112:许可证数据库114:内容服务器116:内容数据库200:行202:行204:行206:行208:行300:程序模块302:解析器304:内容下载模块306:许可证续订模块307:同步模块308:本地许可证数据库310:本地内容数据库311:公共许可证客户机312:重现应用程序314:输出设备316:用户接口 List of Reference Numerals 100: Computer system 102: server computer 104: gateway 106: content selection database 108: Client 110: server 112: the license database 114: the content server 116: contents database 200: Line 202: Line 204: Line 206: line 208: line 300: 302 program modules: parser 304: content download module 306: license renewal module 307: synchronization module 308: a local license database 310: a local content database 311: public license client 312: reproduce application 314: output device 316: user Interface

Claims (15)

1.一种用于向客户机提供内容数据的方法,所述方法包括步骤:-从客户机接收内容数据的选择;-生成具有定义的DTD格式的XML文件,XML文件包括许可证信息和内容数据的定位符;-将XML文件发送到客户机;-保持客户机上的本地许可证相关数据对服务器的同步。 1. A method for providing content data to a client, the method comprising the steps of: - selecting from the client receiving content data; - generating XML DTD file with a defined format, the XML file including license information and the content locator data; - send the XML file to the client; - to maintain a local license related to data synchronization on the client to the server.
2.如权利1的方法,还包括:-响应自客户机接收内容数据的选择,从许可证服务器请求许可证条件信息;-将表示一个或多个许可证提议的信息发送到客户机;-接收来自客户机的接受信息。 2. The method of claim 1, further comprising: - selecting from a client in response to receiving the content data, requests a license condition information from the license server; - transmits information indicating the one or more licenses proposed to the client; - receiving an acceptance message from the client.
3.如权利1或2的方法,还包括,在客户机设备上使用公共许可证客户机,以处理来自不同重现应用的许可证状态请求。 3. The method of claim 1 or 2, further comprising using a common license client on the client device, to process the license status requests from different applications to reproduce.
4.如权利要求1、2或3的方法,还包括使用同步方法作为客户机许可证相关数据的通信机制。 4. A method as claimed in claim 1, 2 or 3, further comprising using the synchronization method of the communication mechanism client license related data.
5.一种用于向客户机提供内容数据的方法,所述方法包括步骤:-在网络门户上选择内容数据;-接收具有定义的DTD格式的XML文件,XML文件包括许可证信息和内容数据的定位符;-解析XML文件以提取许可证信息;-将许可证信息存储在本地许可证数据库中;-从定位符表示的位置下载内容数据。 5. A method for providing content data to a client, the method comprising the steps of: - selecting the content data on a network portal; - receiving an XML document with DTD definition format, an XML file including content data and license information locator; - parsing XML file to extract license information; - the license information stored in the local license database; - data location indicated by the locator download content.
6.如权利5的方法,还包括步骤:-接收表示一个或多个许可证提议的信息;-输入对一个或多个许可证提议的接受。 6. The method of claim 5, further comprising the step of: - receiving information indicative of one or more licenses proposed; - an input for one or more licenses acceptance of the offer.
7.如权利5或6的方法,还包括步骤:-从用于存储下载内容数据的本地内容数据库中选择用于重现的内容数据;-检查所选内容数据在本地许可证数据库中的许可证状态;-从本地内微据库中读取内容数据以重现内容数据。 7. The method of claim 5 or 6, further comprising the step of: - selecting the content data for reproducing the content from the local database for storing downloaded content data; - checking the selection data in the local license database in the license certificate status; - read the content from the local database in the micro data to reproduce the content data.
8.如权利要求5、6或7的方法,还包括步骤:当选出用于重现的内容数据时,更新在本地许可证数据库中的许可证信息。 8. A method as claimed in claim 5, 6 or 7, further comprising the step of: when an election for reproduction of the content data, the local license database update license information.
9.如权利要求7或8的方法,还包括步骤:-当用于重现内容数据的许可证用完时,允许重现内容数据,并存储对内容数据的使用量;-将客户机重新连接至网络;-请求追加续订用于重现内容数据的许可证,并考虑所存储的过去使用量。 9. A method as claimed in claim 7 or 8, further comprising the step of: - when a license for reproducing the content data runs out, allowed to reproduce the contents data, and stores the usage of the content data; - re-client connected to the network; - the additional request to renew a license for reproducing the content data, and to consider the amount of stored past.
10.一种计算机程序产品,特别是数字存储介质,包括用于通过以下步骤向客户机提供内容数据的计算机程序单元:-从客户机接收内容数据的选择;-生成具有定义的DTD格式的XML文件,XML文件包括许可证信息和内容数据的定位符;-将XML文件发送到客户机。 10. A computer program product, in particular digital storage medium, comprising a computer program element for providing content data to the client by the steps of: - receiving a selection of content data from the client; - generating a DTD in XML format with a defined files, XML files include locator license information and content data; - send the XML file to the client.
11.一种计算机程序产品,特别是数字存储介质,包括用于通过以下步骤向客户机提供内容数据的计算机程序单元:-在网络门户上选择内容数据;-接收具有定义的DTD格式的XML文件,XML文件包括许可证信息和内容数据的定位符;-解析XML文件以提取许可证信息;-将许可证信息存储在本地许可证数据库中;-从定位符表示的位置下载内容数据。 11. A computer program product, in particular digital storage medium, comprising a computer program element for providing content data to the client by the following steps: - selecting the content data on a network portal; - receiving the XML file format having a defined DTD , XML file including license information and content locator data; - parsing the XML file to extract the license information; - the license information stored in the local license database; - the position indicated by the content data downloaded from the locator.
12.一种用于向客户机提供内容数据的服务器系统,所述服务器系统包括:-用于从客户机接收内容数据的选择的装置(102,104,106);-用于生成具有定义的DTD格式的XML文件的装置(102,104),其中,XML文件包括许可证信息和内容数据的定位符;-用于将XML文件发送到客户机的装置(102,104)。 12. A method for providing content data to a client server system, the server system comprising: - a means (102, 104) the selected content data received from the client; - means for generating a defined means DTD XML file format (102, 104), wherein, the XML file including license information and content locator data; - means for transmitting the XML file to the means (102, 104) client.
13.一种用于向客户机提供内容数据的客户机系统,所述客户机系统包括:-用于在网络门户上选择内容数据的装置(108);-用于接收具有定义的DTD格式的XML文件的装置(300),其中,XML文件包括许可证信息和内容数据的定位符;-用于解析XML文件以提取许可证信息的装置(302);-用于存储许可证信息的本地许可证数据库装置(308);-用于从定位符表示的位置下载内容数据的装置(304)。 13. A method for providing content data to a client system of the client, the client system comprising: - means for selecting the content data (108) over a network portal; - means for receiving having a format defined DTD means (300) the XML file, wherein, the XML file including license information and content locator data; - means for parsing the XML file to the license information extracting means (302); - means for storing license information local license certificate database means (308); - means the position indicated by the locator for downloading the content data (304).
14.如权利要求13的客户机系统,所述客户机系统为便携式设备,如膝上型计算机、移动电话、个人数字助理或MP3播放器。 14. The client system as claimed in claim 13, the client system is a portable device, such as a laptop computer, a mobile phone, a personal digital assistant, or MP3 player.
15.一种包括根据权利要求12所述的服务器系统和根据权利要求13或14所述的客户机系统的计算机系统。 15. A server system 12 and client systems computer system according to claim 13 or claim 14 according to claim.
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US20060031222A1 (en) 2006-02-09
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US8856072B2 (en) 2014-10-07
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